Navigation Links
Competitive inhibitor


In biochemistry one distinguishes two ways in which a molecule may block the action of an enzymes: competitive and noncompetitive inhibition.

In competitive inhibition, the molecule acts on the same active site as the normal enzyme substrate. The substrate molecules cannot enter the active site while the inhibitor is there, and inhibitors cannot enter the site when the substrate is there. Characteristic for this mode of inhibition is that increasing the concentration of substrate reduces the effect of the inhibitor, and vice-versa.

In noncompetitive inhibition, the inhibitor works by occupying some other site on the enzyme. Because of this, the substrate and inhibitor do not compete for access to the same site. Rather, the inhibitor alters the shape of the enzyne in such a way that prevents the substrate from binding to the enzyme. In this mode of inhibition, the activity of the enzyme is completely blocked by the inhibitor and increasing the concentration of substrate does not restore enzyme activity.

The kinetics of these activities is described by the Michaelis-Menten equations.


'"/>


(Date:1/20/2016)... 20, 2016 A market that just keeps ... from the explosion in genomics knowledge. Learn all about ... A range of dynamic trends are pushing market growth ... medicine - pharmacogenomics - pathogen evolution - next generation ... - greater understanding of the role of genetic material ...
(Date:1/15/2016)... Rico , Jan. 15, 2016 Recent ... and small to find new ways to ensure data ... iOS and Android that ... on biometrics, transforming it into a hardware authorization token. ... users swipe their fingerprint on their KodeKey enabled device ...
(Date:1/11/2016)... , Jan. 11, 2016  higi, the leading ... 10,000 retail locations, web and mobile, today announced ... million from existing investors. --> ... devoted to further innovate higi,s health platform – ... web portal – including expanding services and programs ...
Breaking Biology News(10 mins):
Other biology definition